Thank you all so much! And have found one last clue I am not sure of. 1 down: Churchwarden's very religious over apse being cleaned out regularly (4)
p?p?
is it pope? Papa?
Incidentally Chiff, I have a sister with that nickname! Our Dad used to put her on his shoulders and make train noises (in those days chuff chuff), and she has been known as Chiff or Chiffa ever since. How did you come by the name?d. She is also a cryptic fiend.